Alot of the people with over 200,000 put mods on their 360 that gives them all the achievements to a game as soon as they put it in to play. It is very cheap and since there are no actual rewards for having a high score except top of leaderboards, it is also very pointless to be at the top if everyone knows you are a cheater. If you want to know if they did the mod thing just look at their games and if they have every achieve in every game they have played you know they cheated. I mean come on who in the world has time to play every single game released in stores and buy every game in the arcade. Even if you did play them all some games have glitched achievements and others have achievements that take a very long time to acquire. Just thought I would give some insight on those 200,000 score plus people.